It seems to me that the pursuit of one’s self interests is the founding principle of activity of all sentient beings. In fact, I would postulate that each person’s life is a continuous quest for one’s personal interests. And there is nothing wrong with such. In fact, it is simply the nature of nature if you will. No one chooses to do anything unless they truly believe it is in their best interests. That is not to say that each choice actually is in one’s best interests, that is merely to say that every person seeks their own interests with each and every decision.
Even submission and sacrifice for another is founded upon the pursuit of one’s own self interests. When a person agrees to watch a TV show that they do not care for in deference to the personal tastes of another, they likely do so because they feel that decision is in their own best interests. If for no other reason than to keep the peace, such is an effort towards one’s own personal interests.
Christians who “submit to” and “surrender” their life to Christ do so in pursuit of their own best interests. Since they truly believe that there is a “Heaven” and a “Hell”, then they choose to go to “Heaven” as a matter of seeking their own best interests throughout all eternity. In fact, were there really an afterlife with an either/or choice of Heaven or Hell, by all means the only logical choice would be to choose Heaven if for no other reason than to avoid Hell. Hence, Christianity is a prime example of an ideology based upon seeking one’s own best interests.
The pursuit of one’s best interests then being the quest by which we deliberate and make our every decision, then it seems to me that any individual’s morals and ethics are established within that context. The “best” of people live decent, clean, law abiding lives in pursuit of their own best interests. And, such a life likely is the most reasonable course as one seeks their own best interests.
Yet ultimately each person must choose and decide for themselves precisely what is in their own self interests. Such is life, and such is living. Or so it seems to me.